λεψέμεν

From LSJ

ἀλλὰ τί ἦ μοι ταῦτα περὶ δρῦν ἢ περὶ πέτρην → why all this about trees and rocks, why all these things we have nothing to do with

Source

French (Bailly abrégé)

inf. f. épq. de λέπω.

Russian (Dvoretsky)

λεψέμεν: эп. inf. fut. к λέπω.